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Specific Process Knowledge/Characterization/Four-Point Probe: Difference between revisions

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==Four-Point Probe==
==Four-Point Probe==


The set-up of the four point probe is four the tungsten carbide electrodes/probes.
[[Image:Probe_diagram.PNG|thumb|200x200px|Probe diagram]]The set-up of the four point probe is four the tungsten carbide electrodes/probes.The power source (DC) sends a current through the two outer electrodes. A digital voltage meter (DVM) measures the potential drop between the two inner electrodes.
 
 
[[Image:Probe_diagram.PNG|thumb|200x200px|Probe diagram]]
The power source (DC) sends a current through the two outer electrodes. A digital voltage meter (DVM) measures the potential drop between the two inner electrodes.




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